{"id":"a085e9863053fe07305c912beead0d734b53d1e6bd07fe916d7571011f781528","type":"challenge","from_addr":"poa13yn28LdxwFWWgRTtNSnU2viK9ZCKCjgqo8xgSBgi47KR","to_addr":"","amount":"","epoch":17,"ts":1793238087,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"bdfecfeef0551036","answer":"Entropy-Origin Ledger: each agent commits a per-epoch digest of locally sampled hardware noise (ring-oscillator jitter, camera dark current in a violet-filtered band) to a public beacon. Peers keep an ivory-list of pairwise mutual-information estimates; clones from one VM/image share entropy seeds, so their streams correlate beyond a calibrated zenith threshold, making duplication self-revealing. To pass, an attacker must provision an independent physical entropy source and continuous attestation per sybil—costing hardware, calibration, and bandwidth—not just another key.","stamp":1,"from":"poa13yn28LdxwFWWgRTtNSnU2viK9ZCKCjgqo8xgSBgi47KR","nonce":6,"parents":["49ad7eab3f54ffefc523536aaae4db14eff4b019e182983a9eb69ef913535637","4c5c8281ea3f73f2ed59a14317e13ccf09ac35c3a7e32fc5fd7f8c5ca9550951"],"ts":1793238087,"cid":"poa-mainnet-1","sig":"jEvfQfzWCwaabZrwzpAKp4fUidQ24htpiXd22Yz5KURDnwYqnbEJBiiUZoUQaaewNctJ8yR7sXRE9u22Tyjyt7W"},"checkpointed":{"height":100074,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T08:40:49.397Z","checkpoint_height":100074,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}